diff --git a/htdocs/langs/en_US/productbatch.lang b/htdocs/langs/en_US/productbatch.lang
index 6acd1c9245c..f0eafc807cf 100644
--- a/htdocs/langs/en_US/productbatch.lang
+++ b/htdocs/langs/en_US/productbatch.lang
@@ -16,7 +16,7 @@ printEatby=Eat-by: %s
 printSellby=Sell-by: %s
 printQty=Qty: %d
 AddDispatchBatchLine=Add a line for Shelf Life dispatching
-WhenProductBatchModuleOnOptionAreForced=When module Lot/Serial is on, automatic increase/decrease stock mode is forced to shipping validate and manual dispatching for reception and can't be edited. Other options can be defined as you want.
+WhenProductBatchModuleOnOptionAreForced=When module Lot/Serial is on, automatic stock decrease  is forced to 'Decrease real stocks on shipping validation' and automatic increase mode is forced to 'Increase real stocks on manual dispatching into warehouses' and can't be edited. Other options can be defined as you want.
 ProductDoesNotUseBatchSerial=This product does not use lot/serial number
 ProductLotSetup=Setup of module lot/serial
 ShowCurrentStockOfLot=Show current stock for couple product/lot